CN111647454B - Tackifier for sealing grease, preparation method and application - Google Patents
Tackifier for sealing grease, preparation method and application Download PDFInfo
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- CN111647454B CN111647454B CN202010556829.5A CN202010556829A CN111647454B CN 111647454 B CN111647454 B CN 111647454B CN 202010556829 A CN202010556829 A CN 202010556829A CN 111647454 B CN111647454 B CN 111647454B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/06—Mixtures of thickeners and additives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M167/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound, a non-macromolecular compound and a compound of unknown or incompletely defined constitution, each of these compounds being essential
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1013—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as thickening agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an acyloxy radical of saturated carboxylic or carbonic acid
- C10M2209/062—Vinyl esters of saturated carboxylic or carbonic acids, e.g. vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a tackifier for sealing grease, a preparation method and application thereof, wherein the tackifier comprises 70-90 parts by weight of base oil, 1-3 parts by weight of stabilizer, 8-15 parts by weight of polymethacrylate and 5-7 parts by weight of EAV, and the stabilizer is one or two of T551 or diphenylamine. The viscosity and the low-temperature resistance of the shield tail sealing grease can be improved by using the tackifier disclosed by the invention.
Description
Technical Field
The invention relates to a tackifying material, in particular to a tackifying material for producing shield tail grease and a preparation method thereof.
Background
At present, tunnel engineering construction of subways, railways, highways, municipal works, hydroelectric power and the like is greatly promoted in China, shield construction is widely applied to tunnel engineering construction, a main machine in the shield construction is a shield machine, and shield tail sealing grease is required to be used for a shield tail sealing device of the shield machine in a working state in order to prevent mud from invading. One of the main indexes for evaluating the sealing performance of the shield tail sealing grease is the adhesiveness. The shield tail sealing grease has wide breadth in China, has large temperature difference in the north and the south, has wide applicable temperature range for ensuring the stability of the sealing performance of the shield tail sealing grease in various places, and particularly has no low-temperature condensation phenomenon under the low-temperature environment to ensure the stability of the grease.
At present, polyisobutylene is generally used as a tackifying material of shield tail sealing grease in the industry. Polyisobutylene is a general tackifying material used in various fields, is colorless, tasteless, nontoxic Newtonian fluid, is nonflammable, has good chemical stability, acid resistance, alkali resistance, ultraviolet resistance, good electrical insulation and excellent performance. However, only polyisobutylene can be used in the production of shield tail oil to improve the viscosity of the oil, and other properties are useless for the shield tail oil, so that waste is caused to a certain extent. The production cost of polyisobutylene is high, and high molecular polyisobutylene and low molecular polyisobutylene have different properties. The common high molecular polyisobutylene 2400 has poor low temperature resistance, while the low molecular polyisobutylene with better low temperature resistance, such as 1300, 950, etc., has poor tackifying effect and large addition ratio. These problems make the shield tail sealing grease produced by the prior art not have the same low temperature resistance and tackifying effect, and the production cost is extremely high.
Therefore, the development of a tackifying material which has good tackifying effect, wide temperature application range, no corrosiveness, low manufacturing cost and simple preparation process and can obviously improve the performance of the shield tail sealing grease has huge industrial application prospect and requirements.
Disclosure of Invention
The invention aims to provide a tackifier for sealing grease, which has excellent bonding performance, improves the low-temperature resistance of shield tail sealing grease, and has wider temperature adaptation range.
In order to solve the technical problems, the invention adopts the following technical scheme:
a tackifying material for shield tail oil production comprises the following raw materials in parts by mass:
70-90 parts of base oil,
1-3 parts of stabilizer,
8-15 parts of polymethacrylate,
5-7 parts of EVA (ethylene-vinyl acetate copolymer),
the stabilizer is one or two of T551 (benzotriazole derivative) or diphenylamine.
Specifically, in some embodiments the base oil of the present invention is 10#Base oil, 25#Base oil, 650 SN.
In particular, in some embodiments the polymethacrylate of the present invention is a product of the FILB8 and/or the FILB72 model number from Asahi chemical company of Japan.
The invention also aims to provide a preparation method of the tackifier for the sealing grease, which comprises the following steps:
1) pouring the base oil into a reaction kettle according to a certain proportion, stirring and heating, wherein the stirring frequency is 10HZ, and heating to 100 ℃;
2) pouring polymethacrylate and EVA into a reaction kettle according to a proportion, stirring and heating, adjusting the stirring frequency to 20HZ, and heating to 130-160 ℃;
3) then stirring at constant temperature of 130-160 ℃ with the stirring frequency of 30 HZ;
4) after constant-temperature stirring treatment, proportionally pouring the stabilizer into a reaction kettle, adjusting the stirring frequency to 40HZ, and continuously stirring for 1-3 hours at constant temperature to obtain the tackifying material for producing the shield tail grease.
The invention also provides a using method of the tackifier for the sealing grease, and specifically, the tackifier is added into the shield tail sealing grease, and the adding amount is 1-10 wt%.
Compared with the prior art, the invention has the following progress:
1) the tackifier is prepared by fully dissolving polymethacrylate in base oil, so that the viscosity index of a product is improved, simultaneously EVA is added, the viscosity of the product is further enhanced, and the cohesion of the product is improved; compared with the common tackifying material which takes polyisobutylene 2400 as the main tackifier in the industry, the low-temperature resistance of the tackifying material for producing shield tail grease disclosed by the invention is improved by 5-15 ℃.
2) The tackifying material for the shield tail grease production is simple to prepare and low in cost.
3) The tackifying material has stable product performance, obvious tackifying effect and non-corrosive formula components.
4) The tackifying material provided by the invention ensures the adhesiveness of the shield tail sealing grease, obviously improves the adaptability of the shield tail sealing grease under a low-temperature condition, and solves the problem that the low-temperature resistance and tackifying effect of the shield tail grease cannot be repeated at present.
Detailed Description
The present invention is further illustrated below with reference to specific examples, which are not intended to limit the scope of the invention.
Example 1
The preparation method of the tackifier for the sealing grease comprises the following steps:
firstly, 10 is put#3000g of base oil is poured into the reaction kettle at a uniform speedTurning on the stirring frequency of 10HZ, and heating to 100 ℃;
then, evenly dividing polymethacrylate FILB82390g and EVA200g into three parts, pouring the three parts into a reaction kettle at an interval of 10 minutes every time, and then rapidly heating to 130-160 ℃ at a stirring frequency of 20 HZ;
then adjusting the stirring frequency to 30HZ, and keeping the temperature for 1.5 hours;
and finally pouring 45gT551 into the reaction kettle at a constant speed, adjusting the stirring frequency to 40HZ, and stirring at a constant temperature for 1-2 hours to obtain the novel tackifier.
The kinematic viscosity and pour point of the prepared tackifier and polyisobutylene 2400 were compared, and the specific results are shown in table 1.
TABLE 1 Property parameter Table of tackifying materials
| Index name | Polyisobutylene 2400 | Example 1 | Detection method |
| Kinematic viscosity (100 ℃ C.) (mm)2)/s | 4700±200 | 5800 | GB/T265-88 |
| Pour point (. degree. C.) | 17±5 | -3 | GB/T3535 |
Example 2
The preparation method of the tackifier for the sealing grease comprises the following steps:
firstly, 25 is mixed#Pouring 3000g of base oil into a reaction kettle at a constant speed, starting stirring at a frequency of 10HZ, and heating to 100 ℃;
then, evenly dividing the polymethacrylate FILB82470g and the EVA210g into three parts, pouring the three parts into a reaction kettle at an interval of 10 minutes every time, and then rapidly heating to 130-160 ℃ at a stirring frequency of 20 HZ;
then adjusting the stirring frequency to 30HZ, and keeping the temperature for 1 hour;
and finally, pouring 70gT551 into the reaction kettle at a constant speed, adjusting the stirring frequency to 40HZ, and stirring at a constant temperature for 2-3 hours to obtain the novel tackifying material.
The kinematic viscosity and pour point of the prepared tackifier and polyisobutylene 2400 were compared, and the specific results are shown in table 2.
TABLE 2 Property parameter Table of tackifying materials
| Index name | Polyisobutylene 2400 | Example 2 | Detection method |
| Kinematic viscosity (100 ℃ C.) (mm)2)/s | 4700±200 | 5500 | GB/T265-88 |
| Pour point (. degree. C.) | 17±5 | -1 | GB/T3535 |
Example 3
The preparation method of the tackifier for the sealing grease comprises the following steps:
firstly, 3000g of 650SN base oil is poured into a reaction kettle at a constant speed, the stirring frequency is started to be 10HZ, and the temperature is raised to 100 ℃ by heating;
then, evenly dividing the polymethacrylate FILB72320g, the polymethacrylate FILB8280g and the EVA240g into three parts, pouring the three parts into a reaction kettle at three times with 10-minute intervals, and then rapidly heating to 130-160 ℃ at the stirring frequency of 20 HZ;
then adjusting the stirring frequency to 30HZ, and keeping the temperature for 1 hour;
and finally, pouring 45g of diphenylamine into the reaction kettle at a constant speed, adjusting the stirring frequency to 40HZ, and stirring at a constant temperature for 2-3 hours to obtain the novel tackifying material.
The kinematic viscosity and pour point of the prepared tackifier and polyisobutylene 2400 were compared, and the specific results are shown in table 3.
TABLE 3 Property parameter Table of tackifying materials
| Index name | Polyisobutylene 2400 | Example 3 | Detection method |
| Kinematic viscosity (100 ℃ C.) (mm)2)/s | 4700±200 | 5500 | GB/T265-88 |
| Pour point (. degree. C.) | 17±5 | 5 | GB/T3535 |
Example 4
The preparation method of the tackifier for the sealing grease comprises the following steps:
first, 10#Pouring 3000g of base oil into a reaction kettle at a constant speed, starting stirring at a frequency of 10HZ, and heating to 100 ℃;
then, evenly dividing the polymethacrylate FILB72400g and the EVA165g into three parts, pouring the three parts into a reaction kettle at an interval of 10 minutes every time, and then rapidly heating to 130-160 ℃ at a stirring frequency of 20 HZ;
then adjusting the stirring frequency to 30HZ, and keeping the temperature for 1 hour;
and finally, pouring 60g of diphenylamine into the reaction kettle at a constant speed, adjusting the stirring frequency to 40HZ, and stirring at a constant temperature for 2-3 hours to obtain the novel tackifying material.
The kinematic viscosity and pour point of the prepared tackifier and polyisobutylene 2400 were compared, and the specific results are shown in table 4.
TABLE 4 Property parameter Table of tackifying materials
Example 5
The tackifier prepared in example 1 was added to shield tail sealing grease (shield tail sealing grease DY-988 from sinda chemical technology ltd) purchased in the market in an amount of 5%. Comparative tests were carried out using the shield tail sealing grease without the tackifier as a blank, and the test results are shown in table 5.
TABLE 5 product quality detection index and detection method
The low-temperature resistance of the shield tail grease means that the smaller the cone penetration change and the larger the grease amount of the pumping property under the temperature change, namely the low-temperature resistance of the shield tail grease is good. The shield tail grease of the blank example and the shield tail grease of the example 5 were tested at different temperatures, and the test results are shown in table 6.
TABLE 6
The above description is a preferred embodiment of the present invention, but the scope of the present invention includes all the adjustment processes based on the above case raw material ratios and different ratios of the same raw materials, the process flow and the derivation, and all should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The preparation method of the tackifier for the sealing grease is characterized by comprising the following steps:
1) pouring the base oil into a reaction kettle according to a proportion, stirring and heating, wherein the stirring frequency is 10HZ, and heating to 100 ℃;
2) pouring polymethacrylate and EVA into a reaction kettle according to a proportion, stirring and heating, adjusting the stirring frequency to 20HZ, and heating to 130-160 ℃;
3) then stirring at constant temperature of 130-160 ℃ with the stirring frequency of 30 HZ;
4) after constant-temperature stirring treatment, proportionally pouring the stabilizer into a reaction kettle, adjusting the stirring frequency to 40HZ, and continuously stirring for 1-3 hours at constant temperature to obtain a tackifying material for producing shield tail grease;
the tackifier for the sealing grease comprises the following raw materials in parts by weight:
70-90 parts of base oil
1-3 parts of stabilizer
8-15 parts of polymethacrylate
EVA5-7 parts
The stabilizer is T551.
2. The method for producing a tackifier for sealing grease according to claim 1, wherein: the base oil is one or more of 10# base oil, 25# base oil and 650 SN.
3. The use method of the tackifier for sealing grease obtained by the preparation method according to claim 1 is characterized in that the tackifier is added to the shield tail sealing grease in an amount of 1-10 wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010556829.5A CN111647454B (en) | 2020-06-18 | 2020-06-18 | Tackifier for sealing grease, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010556829.5A CN111647454B (en) | 2020-06-18 | 2020-06-18 | Tackifier for sealing grease, preparation method and application |
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| Publication Number | Publication Date |
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| CN111647454A CN111647454A (en) | 2020-09-11 |
| CN111647454B true CN111647454B (en) | 2022-03-04 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091142C (en) * | 1999-12-29 | 2002-09-18 | 宝山钢铁股份有限公司 | Lubricant for heat processing of metals |
| BRPI1014102A2 (en) * | 2009-03-31 | 2018-03-06 | Sumitomo Metal Ind | threaded pipe joint |
| WO2015192075A1 (en) * | 2014-06-12 | 2015-12-17 | Novvi Llc | Compressor oil with biobased base oil |
| CN108641794A (en) * | 2018-06-21 | 2018-10-12 | 中铁第五勘察设计院集团有限公司 | A kind of special main shaft seals grease of shield machine and preparation method and applications |
| CN109207241B (en) * | 2018-08-16 | 2021-08-20 | 武汉源锦建材科技有限公司 | Special shield tail sealing grease for shield tunneling machine and preparation method thereof |
| CN110511804A (en) * | 2019-08-29 | 2019-11-29 | 胡纹菲 | A kind of preparation method of tail seal grease of shield |
| CN111286389A (en) * | 2020-01-08 | 2020-06-16 | 西安石油大佳润实业有限公司 | Special high-pressure sealing grease composition for oil field logging |
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